{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS7A0328DQNR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS7A0328DQNR","canonicalUrl":"https://icboms.com/texas-instruments/TPS7A0328DQNR","factsUrl":"https://icboms.com/api/mcp/products/TPS7A0328DQNR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS7A0328DQNR, linear voltage regulator, fixed 2.8 V output, 200 mA, 300 nA quiescent current, 55 dB PSRR (1 kHz), 4-X2SON (1x1 mm), surface mount, -40 to 125 °C.","salesMarkdown":"## Ultra-low Iq LDO for always-on and battery rails The Texas Instruments TPS7A0328DQNR is a fixed-output low-dropout linear regulator delivering 2.8 V at up to 200 mA. Its defining characteristic is a quiescent current of 300 nA, which makes it a fit for battery-powered equipment, energy-harvesting nodes, and microcontroller keep-alive rails where every microamp of standby draw matters. The 55 dB PSRR at 1 kHz gives it enough ripple rejection to supply noise-sensitive analog blocks like sensor front-ends or low-power ADCs without a post-filter. ## Dropout and headroom — what 0.36 V means for your rail budget Maximum dropout voltage is 0.36 V at the full 200 mA load. The input rail must stay above 2.8 V plus dropout to maintain regulation. ## Package and layout — 1x1 mm X2SON The part comes in a 4-X2SON package measuring 1x1 mm (supplier device package 4-X2SON). The exposed pad underneath must be soldered to a PCB thermal land for heat dissipation. ## Protection and control features Built-in protection includes over-current limiting, thermal shutdown, and under-voltage lockout (UVLO). The enable pin allows external on/off control, letting a system controller gate the regulator to cut standby current to near zero when the rail is unused. These protections cover the common fault modes: a shorted load, a stalled fan, or a brown-out input. ## Temperature range — rated for industrial environments Operating junction temperature range is -40°C to 125°C, covering industrial, outdoor telecom, and automotive cabin-domain applications. The 125°C junction limit means the part can be used near hot components or in enclosures with limited airflow, provided the PCB copper area keeps the junction below that ceiling at full load.","metaTitle":"TPS7A0328DQNR LDO Regulator, 2.8V Fixed, 200mA, 300nA Iq","metaDescription":"TI TPS7A0328DQNR linear regulator: 2.8V fixed output, 200mA, 300 nA quiescent current, 55dB PSRR at 1kHz, 4-X2SON package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"55dB (1kHz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"4-XDFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"200mA","Protection Features":"Over Current, Over Temperature, Under Voltage Lockout (UVLO)","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C (TJ)","Voltage - Input (Max)":"6V","Voltage Dropout (Max)":"0.36V @ 200mA","Supplier Device Package":"4-X2SON (1x1)","Current - Quiescent (Iq)":"300 nA","Voltage - Output (Min/Fixed)":"2.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.94","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.94000","currency":"USD"},{"qty":10,"price":"$0.83800","currency":"USD"},{"qty":25,"price":"$0.79560","currency":"USD"},{"qty":100,"price":"$0.65340","currency":"USD"},{"qty":250,"price":"$0.61076","currency":"USD"},{"qty":500,"price":"$0.53976","currency":"USD"},{"qty":1000,"price":"$0.42612","currency":"USD"},{"qty":3000,"price":"$0.40200","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/619f97c74ffd6e7d6600a49234e51e8d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does TPS7A0328DQNR have overcurrent protection?","answer":"Yes, over-current protection is included, along with over-temperature shutdown and under-voltage lockout (UVLO). These protect the regulator and downstream circuitry during fault conditions."},{"question":"What is the PSRR of TPS7A0328DQNR?","answer":"Power supply rejection ratio is 55 dB at 1 kHz. This level of ripple rejection is adequate for cleaning a switching-regulator output for a low-power analog load, though a higher-PSRR LDO would be preferred for sensitive audio or precision reference rails."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS7A0328DQNR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS7A0328DQNR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}